Mandoline UI Process: Update namespaces and file names

components/mus/gles2/gpu_impl.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/mus/gles2/gpu_impl.h"
 
 #include "components/mus/gles2/command_buffer_driver.h"
 #include "components/mus/gles2/command_buffer_impl.h"
 
-namespace gles2 {
+namespace mus {
 
 GpuImpl::GpuImpl(mojo::InterfaceRequest<Gpu> request,
                  const scoped_refptr<GpuState>& state)
     : binding_(this, request.Pass()), state_(state) {}
 
 GpuImpl::~GpuImpl() {}
 
 void GpuImpl::CreateOffscreenGLES2Context(
     mojo::InterfaceRequest<mojo::CommandBuffer> request) {
   new CommandBufferImpl(request.Pass(), state_,
                         make_scoped_ptr(new CommandBufferDriver(state_)));
 }
 
-}  // namespace gles2
+}  // namespace mus